Truck.



W. S. OVERLIN.

TRUCK.

APPLICATION FILED DEC.22. 1911.

Patented Dec. 31, 1918.

4 SHEETS-SHEET l.

W. S. OVERLIN.

TRUCK.

APPLICATION FILED DEC.22.1917.

Patented Dec. 31, 1918.

4 SHEETS-SHEET 2.

w. s. 0VERLIN TRUCK.

APPLICATION FILED DEC-22.1917- LQ89,529. Patented Dec. 31, 1918.

4 SHEETS-SHEET 3.

w. SJOVERLIN.

' TRUCK.

APPLICATION FILED DEC.22.19I7.

1,29,5Q9 Paten Dec. 31,1918.

-ETS-SHEET 4.

WILLIAM S. OVERLIN, OF COLLINS VIEW, OREGON.

TRUCK.

Specification of Letters Patent.

Patented Dec. 31, 1918.

A Application filed December 22, 1917. Serial No. 208,393.

To all whom it may concern Be it known that I, WILLIAM S. OVERLIN,

a citizen of the United States, residing at Collins View, in the countyof Multnomah and State of Oregon, have invented new anduseful-Improvements in Trucks, of which the following is aspecification.

This invention relates to trucks for handling heavy and bulky articles,such as piles of lumber for example, and consists in improvements in theconstruction of the body or frame and of the running gear, in the meansfor picking up the load, and. in the mechanism for operating said means.The truck, in its preferred form and as herein illustrated, is a motortruck, and the hoisting mechanism is operated by the same motor whichdrives the rear wheels.

In the accompanying drawing,

Figure 1 is a side elevation of a motor lumbertruck embodying myinvention.

Fig. 2 is a perspective View of the frame.

Fig- 3 'is a vertical section through one of the vertical frame members.

Fig. 4 is a horizontal section through said member on line 44 of Fig. 3.

Fig, 5 is a perspective of one of the load engaging shoes.

Fig. 6 is a side elevation of another form of shoe, and Fig. 7 is a sideView of another form of truck.

The frame is of the type which enables the truck to be run over thelumber pile, or other load to be transported, and consists of two rollediron beams of standard section, preferably I beams, bent into invertedU-shape,

the legs 2 standing vertically at the four corners of the truck and thecurved portions 3 forming arches across the front and rear of the truck.Longitudinal beams 4 and 5 join the vertical members near their top Theframe thus constructed is supported on the wheels 1 through springs 6carried by the vertical frame members. The ends of the spring areconnected to the flanges of a T-iron 7 ,secured to the upper part of theleg 2 by pieces of sheet metal 8 welded to the flanges of the leg beamand to the web and flange of the T iron.

y A socket-piece 9 is secured to the springclip 10 and receives andrests on the top of a rod 11, which passes through bearing blocks 12secured between the outer flanges of the leg beam. Near its lower endsaid rod carries the wheel spindle 13, the outer end of which issupported in a bracket 14 secured to said rod and pivotally connectedby" a link- 15 to a bracket 16 projecting from the longitudinal member5. The links 15 and brackets 16 are omitted in the case of the spindles13 of the front wheels, leaving their rods 11 free to be turned insteering.

The brackets 14 are removed in Fig. 1 and from the front Wheel spindlein Fig. 2.

Each bracket 16 also supports the outer end of a spindle 17, on which isa sprocket wheel '18 which drives, by chain 19, a sprocket wheel 18carried by the rear wheel 1.

In practice, 'the' invention is embodied in a motor truck, although thisis not essential to the features just described; 20 represents themotor, 21 the casing inclosing the driving shaft and differential, theshaft 22 of which carries a sprocket wheel 23, the chain 24 of whichdrives a sprocket wheel 25 secured to the wheel 18. 26 is the steeringrod and 27 the links by which it is connected to the spindles 11 of thefront wheels.

There remains to be described the means by which the load is lifted andsupported in transit. This consists of shoes or lifting plates which areslidablymounted between the inner flanges of the lower ends of the lebeam 2, angle irons 29 being secured tosa1d flanges and bars 30 at theangles of the same with the web of the beam to form guideways for thevertical members of sa1d shoes to slide in.

Each shoe consists, as shown in Fi s. 2 to 5, of an upper plate 31 and alower p ate 32, hinged together at 33, plate 32 carryin the liftingshelf 34. The backs of said p ates carry lugs 35 connected by a spring36 tending to swing the plate 32 on the hinge when in its lowermostposition, as indicated in dotted lines in Figs. 2 and 3. Plate 32 has abeveled rib 37 on its back which contacts with the web of the leg beam.Plate 31 has a sheave 38 mounted on its back, around which asses a cable39, one end of which is secure at 40 to said web. Fig. 6 shows a simplerform of shoe, consisting of lifting shelf 34 and. one vertical plate 41,carrying the sheave 38. To maintain said plate in its position flushwith the edges of the flanges of the leg beam, it is provided with aplurality of studs 42 on its back. The cable 39 from each shoe passesover a guide sheave 43 also carries a friction disk 50, with whichcodperates, when it is desired to raise a load, another disk 51, carriedby a longitudinally movable shaft 52, driven by a sprocket chain 53 fromthe motor.

Shaft 52 is shifted by a yoke engaged by a' short lever 54, pivoted onframe member 4 and connected by a link 55 with an operating lever 56.Brake disk 48 is surrounded by a band 57 connected to another operatinglever 58.

When a load is to be'transported, the vehicle is run over the same andthen the shoes are engaged under the ends of boards on which the load isset. Then the shaft 52 is shifted to bring disks 50 and 51 into contactand, the motor being running, the load is hoisted to the desired heightat which it is held by the brakes 48, 5 7. The truck is then driven tothe place of delivery and the load is'gradually lowered under control ofsaid brake.

It will be seen that, in the form of the invention shown in Figs. 1 to6, the vertical planes of the points of support of the load coincidewith those of the wheel axes and, in the form shown in 'Fig. 7, the sameis true with regard to the driving or traction wheels, and that theconstruction of the arched supporting members of I beams or similarstructural shapes, provides a veryv strong yet simple frame, the legs ofsaid beams forming very convenient and efficient guideways for thelifting shoes and for, the rodswhich transmit the load to the wh els. ItWlll also be obvious that the frame structure described canbe embodied,in part or in whole, in any type of vehicle, for example,

in a trailer adapted to be attached to the rear end of anautomobile,.and that, therefore, my invention ofvehicle shown. f

In Fig. 7 I have illustrated it, by way of example, in a truck in whichthe'motor and drivers seat are at the front and not over the load.- Inthis case, the spring suspens1on is omitted from thefront arch member,which is secured to the horizontal longi- 'tudinal frame members 4 and 5which are is notlimited to the type" Having thus described my inventionand its manner of use, what I claim is:

1. In a wheeled truck, the combination of longitudinal side framemembers, transverse arched members the legs of which are securedto saidside members, springs secured to said legs above the wheels, a. strutbetween each spring and the corresponding wheel, and load supportscarried on the inside of said legs.

2. In a truck, the combination with the wheels and lateral framemembers, of vertical arched frame members the legs which are secured tosaid lateral members, t e center planes of said arched membersintersecting the wheel axes, bearings and springs secured to the outsideof said legs, struts guided in said bearings and engaging said springsat their upper ends and the wheel spindles at their lower ends, and loadcar-v rying means slidably mounted on the inside of said legs.

3. In a truck, a frame adapted to straddle the load and comprising anarched I beam,

a wheel on the outside of each leg of said beam, a spring secured on theoutside of each leg above said wheel, a strut between each spring andthe corresponding wheel, guide bearings for said struts mounted on theoutside of'said legs, and load carrying means I I slidably mounted onthe inside of said legs. 4. In a truck, the combination of a. pair oflongitudinal side frame members, a vertical arched beam connecting saidmembers, a pair of steerable wheels at the front end of said members, aWheel on the outside of each legof said beam, a spring secured to eachleg, and a supporting member between said spring and said wheel.

5. A motortruck adapted to straddle the load to. be conveyed, the frameof which comprises an arched beam of inverted U shape and longitudinalside members, steer-v side members, a driving wheel opposite each leg ofsaid beam, a yielding connection between said wheel and said leg, loadcarrying means slidably mounted on the inside of able wheels supportingthe front endsof said each leg,'a motor on the frame, and connec- Itions therefrom whereby the driving wheels and the load carrying meansare actuated.

6. In a truck, the combination of a pair of longitudinal side framemembers, a pair of vertical arched transverse frame members connectingsaid side members, load carrying means slidably guided on the inside ofthe legs of said transverse members, thrust rods slidably guided on theoutside of said legs,

wheel spindles carried by said rods, abutments on the upper ends of saidlegs, springs between said abutments and said rods, and means to raiseand lower said load carrying means.

7. In a truck, the combination of side frame members, a front and a reartransverse frame member composed of an arched beam With its legs rigidlysecured to said side members, bearings 0n the outside of said legs, rodscarrying the Wheel spindles mounted in said bearings, means to preventthe rods carrying the rear Wheel spindles from turning in theirbearings, springs bearing on the tops of the rods, abutments for saidsprings secured to said legs, load carrying shoes slidably mounted onthe inside of said legs, and means to raise and lower said shoes.

8. A truck adapted to be run over the load to be lifted, comprising aninverted U-shaped frame composed of arched beams connected bylongitudinal side members, Wheel carrying members slidably mounted onthe outside of the legs of said beams, springs betWeen the latter andsaid Wheel carrying members, load carrying means slidably mounted on theinside of said legs, and means to raise and lower said load carryingmeans.

In testimony whereof I have hereunto set my hand.

WILLIAM S. OVERLIN.

